Vol. 168 No. #1
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More Stories from the July 2, 2005 issue

  1. Earth

    Antarctica’s gaining ice in some spots

    Large portions of Antarctica are storing more snowfall than they once did.

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  2. Tech

    Sensor measures mass of one DNA molecule

    A new biosensor that can detect the mass of a single DNA molecule could lead to faster and more accurate screening for HIV infection, cancer, and other diseases.

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  3. Placebo gives brain emotional break

    Placebo-instigated anxiety reduction is accompanied by sparse activity in emotional parts of the brain as well as by intense responses in neural structures that dampen pain, a new brain-scan study finds.

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  4. Monkeys keep track of small numbers

    Monkeys show signs of knowing when the number of faces that they see matches the number of voices that they hear, leading a research team to conclude that these primates possess basic counting skills.

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  5. Planetary Science

    Flashy news from Mars

    A streak across the Martian sky observed by the rover Spirit was most likely a meteor associated with a comet called Wiseman-Skiff.

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  6. Health & Medicine

    Sleepy teens haven’t got circadian rhythm

    High schools that begin classes as early as 7:30 a.m. deprive teenagers of sleep, and attempts to reset an adolescent's biological clock fail to solve the problem.

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  7. Plants

    Long search reveals cell receptor for plant growth

    More than 70 years after biologists identified the important plant growth hormone auxin, they have finally found a cell-receptor molecule for it.

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  8. Sleepless in SeaWorld: Some newborns and moms forgo slumber

    Orca-whale and dolphin babies and their mothers appear to skip sleep for as long as a month after the pups' birth.

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  9. Health & Medicine

    Running Interference: Fresh approach to fighting inflammation

    Two experimental drugs stop inflammation in mice by preserving a natural inflammation inhibitor.

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  10. Chemistry

    Inside a melting crystal

    A model crystal made of water-saturated polymer spheres shows that small defects in a crystal can cause it to melt from the inside out.

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  11. Muscle Men: Lab-grown cells mirror source’s characteristics

    Researchers studying muscle cells maintained in petri dishes burn sugar and fat with the same efficiency as do the people from whom the cells are isolated.

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  12. Earth

    Bacteria Ride the Tide: Moon’s phases predict water quality at beaches

    At many ocean beaches, full and new moons coincide with the greatest concentrations of bacteria in the water.

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  13. Planetary Science

    Pebbles from Heaven: Tracking planets in the making

    Recording radio waves from the region around a young star, astronomers have for the first time documented the making pebbles, a key step in the rocky road to planethood.

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  14. Mother Knows Worst: Abusive parenting spans generations in monkeys

    Many female rhesus monkeys who were abused as infants by their mothers do the same to their own infants, raising the prospect of using these animals as a model for human child abuse.

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  15. Animals

    He Clones, She Clones: Dad, mom ants as different species

    In the little fire ant, males and queens clone themselves, the closest science has gotten to declaring males and females as separate species.

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  16. Sound Off

    By using bits of RNA to eliminate the effects of selected genes, scientists are developing new ways to study gene function and treat diseases.

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  17. Astronomy

    Panning Distant Dust

    Astronomers are using hundreds of newly detected debris disks found around a variety of nearby stars to hunt for planets and learn about the evolution of our solar system.

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  18. Humans

    Letters from the July 2, 2005, issue of Science News

    Chlorine’s fate? “Special Treatment: Tiny technology tackles mega messes” (SN: 4/23/05, p. 266), on the reaction of nanoparticles of iron with trichloroethane (TCE) contaminating an aquifer, states that the TCE is converted “into ethane.” What happens to the chlorine stripped off the TCE? Is it converted into insoluble inorganic compounds or is it available to […]

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